Call me weird but some Simpsons episodes from the start of this decade are interesting. Not very interesting but kinda interesting. Like the one about Lisa's ancestor Eliza, From Rags to Riches and Holidays of Future Passed.
So you thought Wreck-It Ralph 2 was the first to have a "realistic" depiction of the internet, right? The Simpsons had the idea first, as the internet of the future. And now it's under Disney's catalog so yeah.
Recently, Amazon Prime Japan and Fuji On Demand released parcels of old episodes of Sazae-San. By now the first two "seasons", comprising episodes between 1969 and 1971, are available with a subscription.